"Rent bikes and go on the Cherry Creek Trail and South Platte River bike paths (over 50 miles of paved trail options, mostly flat) If baseball season, go on a Coors Field tour Visit Denver MintDenver Zoo and Denver Museum Of Nature & Science, right next to each other just east of downtown Go for short drive to the foothills and hike near red rocks ampitheater Amusement park Elitch Gardens is right downtown" See More